And JD and Turk are actually best friends in real life.

6. Spiders can’t fly.

7. There’s a competition in Sweden called Kaninhoppning, or rabbit show jumping.

8. The last man to walk on the moon, Gene Cernan, promised his daughter he’d write her initials on the moon. He did, and her initials, “TDC,” will probably be on the moon for tens of thousands of years.

19. Turtles can breathe through their butt.

20. Alexander Graham Bell originally wanted people to greet each other on the phone by saying “ahoy!” instead of “hello!”

21. Rats laugh when tickled.

22. In 1957, the BBC ran a story about how spaghetti was growing on trees in Switzerland. So many people believed the hoax that the BBC was flooded with calls from people asking how to plant their own spaghetti tree.